#0B51BB

Color Details

HEX
#0B51BB
RGB
rgb(11, 81, 187)
HSL
hsl(216, 89%, 39%)
CMYK
cmyk(94%, 57%, 0%, 27%)
Best text on this color #FFFFFF (CR 7.22:1) Determined by WCAG contrast ratio

Readability Previews

Black on #0b51bb
Contrast 2.91:1 Fail
White on #0b51bb
Contrast 7.22:1 AAA
#0b51bb on Black
Contrast 2.91:1 Fail
#0b51bb on White
Contrast 7.22:1 AAA

Tints & Shades

#3c74c9
#6d97d6
#9db9e4
#094196
#073170
#04204b

Complement & Analogous

#bc750b
#1d0bbc
#0baabc

Triadic

#bc0b52
#52bc0b

Monochrome

#04204b #073170 #0b51bb #6d97d6 #9db9e4 #cedcf1

Analogous

#0baabc #54c4d0 #0b51bb #4a3cc9 #1d0bbc #170996

Complementary Mix

#073170 #0b51bb #6d97d6 #bc750b #d3a560 #7a4c07

Nearby Colors

#0b51ba
#0b51bc
#0b51ab
#0b51cb

Embed #0B51BB swatch

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About #0B51BB

#0B51BB converts to RGB(11, 81, 187) and HSL(216, 89%, 39%). This page provides quick readability checks, related hues (complementary and analogous), and ready-made palettes so you can drop the color into UI components, images, or CSS immediately.

Tip: Use the “Best text” chip above as a safe default foreground on this color (chosen by contrast ratio).

#0B51BB FAQs

What is the RGB value of #0B51BB?
RGB: 11, 81, 187. Copy as CSS: rgb(11, 81, 187)
Is #0B51BB a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #0B51BB?
Complement: #bc750b.
Does #0B51BB have good contrast on white or black?
On white: 7.22:1 (AAA (normal text)). On black: 2.91:1 (Fails AA).